Today I noticed that there is a command on Mac OS X named open. It just opens any document or folder that you pass as a command line argument as if you double click on it within finder. That’s useful for viewing pdfs or images.

This is a screenshot from a project that I’m currently working on. These are no galaxies but rather planetesimals. Although the two astronomical objects looks remarkably similar in a picture like this, the size difference is huge (23 orders of magnitude).